Evidence-based interventional pain medicine according to clinical diagnoses.


The sacroiliac joint accounts for approximately 16-30% of cases of chronic mechanical low back pain. Pain originating in the sacroiliac-joint is predominantly perceived in the gluteal region, although pain is often referred pain into the lower and upper lumbar region, groin, abdomen and/ or lower limb(s). Because sacroiliac joint pain is difficult to distinguish from other forms of low back pain based on history, different provocative maneuvers have been advocated. Individually, they have weak predictive value, but combined batteries of tests can help ascertain a diagnosis. Radiological imaging is important to exclude ‘red flags’ but contributes little in the diagnosis. Diagnostic blocks are the diagnostic gold standard but must be interpreted with caution, since false positive as well as false negative results occur frequently. Treatment of sacroiliac-joint pain is best performed in the context of a multidisciplinary approach. Conservative treatments address the underlying causes (posture and gait disturbances) and consist of exercise therapy and manipulation. Intra-articular sacroiliac joint infiltrations with local anesthetic and corticosteroids hold the highest evidence rating. (1 B+) If the latter fail or produce only short-term effects, cooled radiofrequency treatment of the lateral branches of S1 to S3, (S4) is recommended (2 B+) if available. When this procedure cannot be used (pulsed) radiofrequency procedures targeted at L5 dorsal ramus and lateral branches of S1 to S3 may be considered. (2 C+)


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